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11.
This paper focuses on two cohorts of Norwegian young men whose behaviour in childhood and adolescence caused serious concern to their parents, teachers, social workers and, in some cases, the police, Despite having been identified as ‘at risk’, they made transitions to positive adult masculine identities in two different historical contexts; the 1980s and 2000s. The paper analyses the difference that historical context makes to these young men’s lives, their gendered identity work and their perspectives on their past, present and future. In particular, it identifies the ways in which supportive intergenerational relationships and significant others serve to produce positive turning points and, over time, help the young men to develop resilience and potentially happy and successful futures.  相似文献   
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The purpose of this study was to determine whether multiple-tact training and receptive-discrimination training could be used to teach thematically related vocal intraverbals to typically developing preschool children. Multiple-tact training involved teaching a child to name both the item and the category to which the item belonged. Receptive-discrimination training consisted of teaching a child to select a picture card in the presence of a question from the experimenter regarding the item or its category. When neither of these strategies resulted in substantial increases in intraverbal responses, a typical intraverbal training protocol using tact prompts was implemented. Six typically developing children participated in the study. A multiple-baseline design across word categories was used to evaluate the effects of the three training procedures. Results indicated that both multiple-tact and receptive-discrimination training had minimal effects on the strength of the intraverbal repertoire, whereas direct intraverbal training had a more substantial effect. The results provide some evidence of the functional independence of verbal operants, as well as the independence of listener and speaker repertoires. Receptive-discrimination and multiple-tact training may have facilitated acquisition of intraverbals; however, further research is needed to assess how these repertoires might interact with each other.  相似文献   
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Treatment effect estimators that utilize the propensity score as a balancing score, e.g., matching and blocking estimators are robust to misspecifications of the propensity score model when the misspecification is a balancing score. Such misspecifications arise from using the balancing property of the propensity score in the specification procedure. Here, we study misspecifications of a parametric propensity score model written as a linear predictor in a strictly monotonic function, e.g. a generalized linear model representation. Under mild assumptions we show that for misspecifications, such as not adding enough higher order terms or choosing the wrong link function, the true propensity score is a function of the misspecified model. Hence, the latter does not bring bias to the treatment effect estimator. It is also shown that a misspecification of the propensity score does not necessarily lead to less efficient estimation of the treatment effect. The results of the paper are highlighted in simulations where different misspecifications are studied.  相似文献   
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This paper examines how women who experienced severe adjustment problems during adolescence, and who had troubled childhoods in families with high levels of conflict, construct their self‐conceptions as mothers. Applying data from a 30‐year‐long follow‐up study, this paper examines how participants with troubled upbringings experience social norms of motherhood. Two overall themes emerged along with their associated subcategories, and these are identified as significant findings. The first theme is the stigmatizing gaze, exemplifying how the intervention of the child welfare service is recognized as essential to the women's self‐conception; its three subcategories are prejudiced motherhood, predestined motherhood and self‐critical motherhood. The second theme is significant relationships, exemplifying the mothers' personal bonds and contributing greatly to their self‐conception; its three subcategories are the other half, next of kin and disturbed relations. The findings reveal that the way these women view themselves as mothers cannot be separated from the way that others view them, and in addition, they must negotiate their positions as mothers through the normative discourses of motherhood. The findings apply to both theoretical and practical social work, addressing the need for an understanding of motherhood within the field of child welfare.  相似文献   
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Asperger's syndrome (AS) as a diagnostic category has gained enormous popularity and the label is being applied with increasing liberality. While greater awareness of the disorder may be of advantage to certain children and their families, we argue that the over‐inclusive use of the diagnosis may also lead to professional conflicts and ethical dilemmas. Perhaps most concerning of these is that diagnostic ‘generosity’ may exclude children from treatments they would have received if an alternative formulation had been considered. We present clinical scenarios, with special consideration of contextual and intergenerational influences on the children's early lives, and offer alternative conceptualisations. We argue that the new ‘epidemic’ of Asperger's should not be allowed to compromise our professional standards. Assessment should always include a detailed family and developmental history. Finally, we would be interested in feedback from clinicians working in this field.  相似文献   
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According to Skinner''s (1957) analysis of verbal behavior, the mand and the tact are functionally independent verbal operants, each of which is acquired through a unique history of reinforcement. The present study attempted to replicate the findings of Lamarre and Holland (1985), who empirically demonstrated functional independence of mands and tacts in typically developing preschool children. Five children participated. All were initially trained to complete two 4-piece assembly tasks. Four children were then trained to tact the four pieces that comprised one of the assembly tasks, and to mand for the four pieces that comprised the other task, using arbitrary vocal response forms. The remaining child received tact training only, and only on one task. The effects of training on the untrained operant were evaluated in a multiple-probe design across tasks. Following mand training, 4 out of 4 children reliably emitted tacts under testing conditions, while the effects of tact training differed across participants. The results differ from those of Lamarre and Holland, but are not necessarily surprising from the point of view of either Skinner''s analysis or more recent behavioral accounts of language. Future research should attempt to identify variables that affect transfer between mand and tact relations.  相似文献   
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Current differences in the level of the total fertility rate (TFR) between Dutch municipalities are smaller than they were in the 1970s and 1980s. Nevertheless, there are still considerable differences. Small municipalities have higher TFRs than large cities. This article aims to answer the question whether these differences will decline further until differences between large and small cities disappear. For that purpose we develop a regression model of regional differences in the TFR including demographic, socioeconomic, and cultural variables. Using the estimation results we decompose differences in fertility between large and small cities into the contribution of differences in levels of the determinants versus differences in the relationships between the determinants and fertility. The results show that differences in cultural variables have a larger effect on differences in the TFR than the demographic and socioeconomic variables. As cultural differences do not tend to change quickly, they will not lead to quick changes in regional differences in the TFR. Demographic differences are not expected to lead to strong changes either, as the two demographic variables (household structure and ethnic structure) have opposite effects. As the effect of the socioeconomic variable is caused by differences in the magnitude of the regression coefficient rather than by differences in the value of this variable, even if differences in this variable disappeared, this would still not lead to convergence of the TFR. Thus the article concludes that differences in the TFR between large and small cities are not likely to diminish quickly.  相似文献   
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Several studies have demonstrated effects of stimulus-stimulus pairing (SSP) on children's vocalizations, but numerous treatment failures have also been reported. The present study attempted to isolate procedural variables related to failures of SSP to condition speech sounds as reinforcers. Three boys diagnosed with autism-spectrum disorders participated. Phase 1 was designed to assess SSP effects on production of auditory stimuli via button pressing. When SSP failed to produce a preference for the target stimulus, we instituted a series of procedural manipulations intended to address potential reasons for failure. One participant preferred the target stimulus when given the opportunity to select preferred items for pairing prior to each session, but a subsequent reversal attempt produced ambiguous results. Two participants showed no consistent preference in Phase 1 and underwent a within-session reinforcer evaluation in Phase 2, in which alternative controlling variables were demonstrated by delivering preferred stimuli contingent on button pressing.  相似文献   
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